Hi Augusta! Thank you for sending us this observation - I'll let our atmospheric modeller people know about it! cheryl -------- Augusta Dushkin wrote: 830pm stepped out side and we smell a strong smell of sulfur and rotten eggs Here in unalaska. 840pm stepped out again and smell dissipated. -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050